4468806721 has 4 divisors (see below), whose sum is σ = 4486195332. Its totient is φ = 4451418112.

The previous prime is 4468806703. The next prime is 4468806731. The reversal of 4468806721 is 1276088644.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4430366721 + 38440000 = 66561^2 + 6200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4468806721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4468806701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8693920 + ... + 8694433.

It is an arithmetic number, because the mean of its divisors is an integer number (1121548833).

Almost surely, 2^4468806721 is an apocalyptic number.

It is an amenable number.

4468806721 is a deficient number, since it is larger than the sum of its proper divisors (17388611).

4468806721 is a wasteful number, since it uses less digits than its factorization.

4468806721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17388610.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 4468806721 is about 66849.1340332842. The cubic root of 4468806721 is about 1647.1400375188.

The spelling of 4468806721 in words is "four billion, four hundred sixty-eight million, eight hundred six thousand, seven hundred twenty-one".